Series synopsis
Killing Grounds: The Gilgo Beach Murders is a British documentary crime television series that premiered on Prime Video on April 21, 2026. It ended on April 21, 2026.
When a woman vanishes, police find bodies along Long Island's shore. Years of dead ends and overlooked victims stall the case until a new task force spots a suspect hiding in plain sight. With trial looming, insiders and families speak.
Premise
When a woman vanishes, police find bodies along Long Island's shore. Years of dead ends and overlooked victims stall the case until a new task force spots a suspect hiding in plain sight. With trial looming, insiders and families speak.
Episodes
This series spans 1 season with 4 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 4 | April 21, 2026 | April 21, 2026 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Part One While searching for a missing woman on Long Island, police uncover a hidden burial ground. As families demand answers, investigators begin to realize a serial killer may have been operating unnoticed for years. |
April 21, 2026 |
| 2 |
Part Two After years of stalled leads and system failures, a new task force reopens the Gilgo case, unearthing phone records, witness accounts, and vehicle clues that all point to a suspect who's been hiding in plain sight. |
April 21, 2026 |
| 3 |
Part Three A year of surveillance and clandestine DNA sampling leads to Rex Heuermann's arrest. As investigators dig deeper, other victims are connected as terrifying new evidence is revealed. |
April 21, 2026 |
Production
Release
| Original network/platform | Prime Video |
|---|---|
| First aired | April 21, 2026 |
| Last aired | April 21, 2026 |
| Runtime | 43 minutes |
| Status | ended |